Fill in the correct form of the verb. e.g. first, letters are collected from post boxes. 1 first, letters (collect) from post boxes. 2 then they (take) to the post office. 3 then the addresses (read) and the letters are sorted. in many countries the postcodes (read) by machines and the letters (sort) by machines. 4 then the letters for other places and countries (take) to the railway station and airport. 5 they (take) off the train during the night. l the next day (take) to a local post office. 6 there they (sort) again. 7 in the morning the letters (collect) by postmen and women and (deliver) to our homes and offices.